21321954

素因数分解:

$2^1\times 3^4\times {\mathrm{131617}}^1$

素因数の和:131631

約数の個数: 20

約数和(自身を含む): 47777334

約数和(自身を除く): 26455380

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 131617, 263234, 394851, 789702, 1184553, 2369106, 3553659, 7107318, 10660977, 21321954]

約数ペア:

[(1, 21321954), (2, 10660977), (3, 7107318), (6, 3553659), (9, 2369106), (18, 1184553), (27, 789702), (54, 394851), (81, 263234), (162, 131617)]